Cross-spring.



J.SKULSTAD.

UIMM STRING.

Patented May 12, 1914.

flu ucm hw J. E. SKU'LS'IAD.

CROSS SPRING.

APPLIUATION FILED JAN. 10, 1914,

Patented May l2, 1914.

n vente@ J E SKuLsx-no JOHN E. SKULSTAD, OF MADDOCK, NORTH DAKGTA.

CROSS-SPRING.

Specification of Letters Patent.

Patented May 12, 1914.

Application filed January 10', 1914. Serial No. 811.431. A

To al lwhom, 'it may concern.'

Be it known that 1 JOHN E: SKUISTAD, a citizen ot' the United States, residing at Maddock, in the county oi Benson and State of North Dakota, have invented certain new and uset'ul Improvements in Cross-Springs, of which the `following is a specification, reference being had to the accompanying draw ings.

This invention relates to certain improvements in cross springs and has relation more particularly to a device of this general characteadapted to support a vehicle body, and the object of the invention is to provide a device ot' this general character having novel and improved means whereby both vertical and horizontal jolt ot' the vehicle body is etlectually compensated t'or and whereby the tension of the spring may he readily and conveniently adjusted as the dictates ot' practice may require.

'lhe invention consists in the details of construction and in the combination and ar rangement ot' the several parts whereby eertain important :ulvantages-are attained and the device is renderedsimpler, less expensive and otherwise more convenient and advantageous for use. all as will be hereinafter more vt'nlly set il'orth.,

'.lhe novel Vtentures` otl the invention will be carefully delined in the appended claims.

[n order that my invention may be the better understood. I will now proceed to describe the same with reference to the accompanying drawings, \vherein-;

Figure l is a view in elevation ot a cross spring constructed in accordance with my invention` the coacting portions of the axle being shown in fragment, a part being broken away to illustrato certain details ot' my invention, as herein disclosed, while the remainder et the axle with its wheels and the adjacent portion ot' the vehicle body is indicated by dotted lilies; Fig. 2 is a fragmentary top plan view of the device as illustrated in Fig. l; Fig. Il is a sectional view on'the line .tlm-*2l ot' Fig. l. Fig. 4 is a view in elevation ot a spring constructed in aecordance with my invention particularly adapted to bx applied at the forward part ol a veliiole;":ind Fig. 5 is a view in top plan with certain ol the parts in section o'l the device as illustrated in Fig, l.

y As disclosed in the accompanying drawings, my improved cross spring comprises two duplicate sections extended in substan lially opposite directions, such sections bemg employed in order to facilitate production although it is thought to be obvious that the spring may be produced from integrally connected sections. comprises the limer straight portion 3 ada ted to be suitably connected with the simi ar portion o't the second section, and 'such straight portions :"3 serve as a base for the, weight to be carried and for that purpose are suitably secured to the under face of the vehicle body. Each section is provided with the extended portion l disposed on a sig` cning ot the spring and vice versa. While the outer extremities of the spring may be secured to the elampingmember 6 in an member desired. I prefer that such extremlties be bent to form a scrollor barrel 7 through which the retaining bolt or pintle 8 is adapted lo passlsuch bolt or pintle being mounted in the spaced ears t) carried by the` clamping members ti and projecting upwardly lrom the shaft when the clamping members are in applied position. In having each of the extensions sigmoidal in form and positioned entirely above the supporting axle l` it will be observed that the downward curve ot the extension serves to compensate for the vertical jolt of the Vehicle, while the upward curve serves to compensate tor the horizontal jolt.

In Fig. l, ldsclose my spring as em loyed preferably al the rear of the vehic e but it is mulerslood that il. can be employed willi equal facility at the forward part of the vehicle` it only being necessary that in this latter instance the spring he in reverse position As shown in thesel Figs. 4 and 5 the intermediate straight portion 10 is snitably Vsecured to the lt'th wheel 11 while the extremities ot' the sigmoidal extensions 1'2 are suitably .v'eeured to lhe'brackets 14 depending from the vehicle body 15, herein indicated in Section.

From the. foregoing description, it is thought to be obvioas that a cross spring Each of the sectionsconstructed in accordance with my invention. is o'f a simple and inexpensive nature and is particularly Well adapted for use by reason of the effective manner in which jolting is prevented and it Will also be obvious from the foregoing description thatv my improved cross spring is capable of, some change and modification Without material departure from the principles and scope of the invention and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice.

I claim:

l. In Combination with a vehicle body and a supporting axle therefor, o a cross spring interposed therebetween and posin tioned entirely above the supporting axle, such spring comprising a straight portion affording a base to receive the weight of the body and having a signioidal extension, and means for attaching the extremity of the extension to the supporting axle. l v

Q. In combination with a vehicle bodyand a supporting axle therefor, of a cross spring interposed therebetween and positioned entirely above the supporting axle, such spring comprising a straight portion affording a base to receive the Weightvof the body and having a .sigmoidal extension, and means adinstable longitudinally oi the supporting axle .for securing the extremity of the eX- tension thereto, and whereby the tension of the extension may be regulated.

In testimony whereof I hereunto afiix my signature in the presence of two Witnesses.

J( )IIN E. SKULSTAD. lVitnesses I. J. Homin, Y JorIN J. VVOAGEN. 

